EP0171939A2 - Bildeingabevorrichtung - Google Patents

Bildeingabevorrichtung Download PDF

Info

Publication number
EP0171939A2
EP0171939A2 EP85305140A EP85305140A EP0171939A2 EP 0171939 A2 EP0171939 A2 EP 0171939A2 EP 85305140 A EP85305140 A EP 85305140A EP 85305140 A EP85305140 A EP 85305140A EP 0171939 A2 EP0171939 A2 EP 0171939A2
Authority
EP
European Patent Office
Prior art keywords
prism
input device
reflective surface
image input
guide means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85305140A
Other languages
English (en)
French (fr)
Other versions
EP0171939B1 (de
EP0171939A3 (en
Inventor
Ko Asai
Koichiro Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP14889184A external-priority patent/JPS6128173A/ja
Priority claimed from JP14889084A external-priority patent/JPS6128172A/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of EP0171939A2 publication Critical patent/EP0171939A2/de
Publication of EP0171939A3 publication Critical patent/EP0171939A3/en
Application granted granted Critical
Publication of EP0171939B1 publication Critical patent/EP0171939B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

Definitions

  • the present invention relates to an image input device and. more particularly, to an image input device for optically sensing fingerprints and other patterns to convert them to electrical signals.
  • Implementations available today for identifying humans and distinguishing them from one another include a system which relies on fingerprints. By virtue of idosyncrasy and invariability of fingerprints and aided by pattern recognition technology, such an identification system compares characteristics, or minutiae, of fingerprints with those of registered fingerprints for similarities.
  • a finger is laid on a predetermined contact surface of a glass prism and illuminated by light from behind the contact surface, so that the light reflected from the contact surface is converted to an electrical signal representative of a pattern peculiar to the fingerprint.
  • This kind of pattern collection utilizes optical boundary changes of glass which occur at the contact surface of the prism due to the fingerprint pattern. Changes in the intensity of reflected light due to the optical boundary changes are picked up by an industrial television (ITV) camera or like imaging apparatus to provide a photoelectrically converted image of the fingerprint pattern.
  • ITV industrial television
  • the prism in any of the prior art apparatuses mentioned above has an incidence surface to which light from a light source in incident, a reflective surface for reflecting the incident light and on which a finger is laid, and an exit surface through which light from the reflective surface emerges to the outside.
  • the lengthwise direction of the pattern of the fingerprint (identical with the lengthwise direction of the finger) is positioned substantially perpendicular to the comer or ridge which is defined by the incidence and exit surfaces of the prism.
  • the device according to the invention is defined in claim 1 below.
  • a prism 1 has an incidence surface 11, a contact surface (reflective surface) 12 on which a finger 2 is laid, and an exit surface 13.
  • Light issuing from a light source 3 to incident to the incidence surface 11 of the prism 1 illuminates the finger 2 from below the contact surface 12. Then reflected by the surface 12. the light is routed to the outside through the exit surface 13 to be picked up by a camera 4.
  • the finger 2 is laid on the contact surface 12 of the prism 1 in such orientation that the lengthwise direction of a fingerprint pattern is substantially parallel to a ridge 14. which is defined by the conjugate surfaces 12 and 13 of the prism 1.
  • Figs. 2-6 Preferred embodiments of the image input device embodying the present invention are shown in Figs. 2-6. All of these embodiments include guide means for allowing an object, or finger, to be positioned on the contact surface 12 of the prism 1 such that the lengthwise extension of the fingerprint pattern sustantlally aligns with the extension of the ridge 14 of the pnsm 1.
  • the prism 1 is cut along all the four edges of the contact surface 12 to provide inclined cut surfaces 15.
  • the surface 12 surrounded by the cut surfaces 15 lies above the other surfaces.
  • the surface 12 has a rectangular configuration such that the lengthwise direction of the finger 2 on the surface 12 is positioned substantially in alignement with the direction of the ridge 14, that is, such that the longer sides of the rectangle defined by the cut surfaces 15 extend parallel to the ridge 14.
  • the pnsm 1 may be cut along only three sides of the contact surface 12 while leaving the side where the finger 2 is inserted left uncut
  • the prism 1 is provided with conjugate projections 16 which extend along thee sides of the contact surface 12 other than the side through which the finger 2 is to be inserted.
  • the longer sides of the rectangle defined by the projections 16 extend parallel to the ridge 14.
  • the contact surface 12 of the prism 1 is provided with a narrow recess or groove 17 which is configured to define a rectangle. Again, the longer sides of the rectangle are oriented parallel to the ridge 14.
  • a shape representative of a finger is provided by a line 18 which is printed on the contact surface 12 of the prism 1. This will also allow the finger to be positioned such that its lengthwise axis aligns with the ridge 14.
  • FIG. 6 still another embodiment of the present invention is shown in which the guide for positioning the finger 2 is implemented with a notch 21 formed in a turntable 19, which is adapted to clean the prism 1.
  • a piece of wet cloth 20a and a piece of dry cloth 20b each having a sectorial shape are adhered to that face of the turntable 19 which faces the contact surface 12 of the prism 1 while the turntable 1 is rotated.
  • the wet cloth 20b impregnated with cleaning liquid.
  • the turntable 19 is rotated as indicated by an arrow A so that the wet clotch 20a wipes the contact surface 12 and, then, the dry clotch 20b wipes it to remove the cleaning liquid together with impurities.
  • the turntable 19 is stopped immediately before the notch is brought into alignment with the prism 1. that is, in a position where a part of the turntable 19 just ahead of the notch has cover the prism 1. Thereafter, when the next person enters his or her identification (lD) number through a keyboard (not shown), the turntable 19 will be rotated again until it stops in the illustrated position.
  • the notch of the turntable 19 has a rectangular shape the longer sides of which extend parallel to the ridge 14 of the prism 1 in the illustrated position. Such a configuration allows one to successfully lay the finger through the notch of the turntable 19 on the contact surface 12 of the prism 1 such that the lengthwise direction of the fingerprint pattern is aligned with the ridge 14.
  • live print has been shown and described as a pattern to be taken, it may be replaced by an opaque fingerprint or a similar transparency which may be implemented, for example. by a thin plastic film.
  • the present invention provides an image input device which includes a guide so arranged as to cause the lengthwise direction of the pattern of a desired object to be positioned parallel to a ridge between incidence and wayout surfaces of a prism on a contact surface, which is a reflective surface of the prism.
  • a guide so arranged as to cause the lengthwise direction of the pattern of a desired object to be positioned parallel to a ridge between incidence and wayout surfaces of a prism on a contact surface, which is a reflective surface of the prism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Multimedia (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
EP85305140A 1984-07-18 1985-07-18 Bildeingabevorrichtung Expired EP0171939B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP148891/84 1984-07-18
JP148890/84 1984-07-18
JP14889184A JPS6128173A (ja) 1984-07-18 1984-07-18 画像入力方式
JP14889084A JPS6128172A (ja) 1984-07-18 1984-07-18 画像入力装置

Publications (3)

Publication Number Publication Date
EP0171939A2 true EP0171939A2 (de) 1986-02-19
EP0171939A3 EP0171939A3 (en) 1986-08-20
EP0171939B1 EP0171939B1 (de) 1990-04-18

Family

ID=26478945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85305140A Expired EP0171939B1 (de) 1984-07-18 1985-07-18 Bildeingabevorrichtung

Country Status (3)

Country Link
US (1) US4905293A (de)
EP (1) EP0171939B1 (de)
DE (1) DE3577243D1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472769A1 (de) * 1990-08-30 1992-03-04 Maurer Identifikationssysteme Gmbh Identifikationseinrichtung für Daumen- oder Fingerabdrücke
WO2011063783A1 (de) * 2009-11-25 2011-06-03 Friedrich-Schiller-Universität Jena Optische vorrichtung zur erzeugung einer störfähigen internen totalreflexion und deren verwendung
CN107454938A (zh) * 2017-06-05 2017-12-08 深圳市汇顶科技股份有限公司 芯片测试头、芯片测试装置及测试方法

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US5210797A (en) * 1989-10-30 1993-05-11 Kokusan Kinzoku Kogyo Kabushiki Kaisha Adaptive dictionary for a fingerprint recognizer
US5177802A (en) * 1990-03-07 1993-01-05 Sharp Kabushiki Kaisha Fingerprint input apparatus
US5103486A (en) * 1990-04-19 1992-04-07 Grippi Victor J Fingerprint/signature synthesis
US5177353A (en) * 1990-07-31 1993-01-05 Retrievex, Inc. Finger surface image enhancement having liquid layer on finger touching surface of the plate
US5051576A (en) * 1990-07-31 1991-09-24 Michael Schiller Finger surface image enhancement having a liquid layer on the finger touching surface of the platen
CA2064926C (en) * 1991-04-03 1996-07-16 Ritsuko Omori Fingerprint image processing system capable of simply processing minutiae
GB2267771A (en) * 1992-06-06 1993-12-15 Central Research Lab Ltd Finger guide
JP3045629B2 (ja) * 1993-02-17 2000-05-29 三菱電機株式会社 凹凸パターン検出装置
GB2276732B (en) * 1993-03-31 1995-12-13 Central Research Lab Ltd Fingerprint imaging
DE69518233D1 (de) * 1994-02-18 2000-09-07 Imedge Technology Inc Kompakte vorrichtung um ein bild von der oberflächen topologie von objekten herzustellen und verfahren um die vorrichtung herzustellen
US5659626A (en) * 1994-10-20 1997-08-19 Calspan Corporation Fingerprint identification system
US5546471A (en) * 1994-10-28 1996-08-13 The National Registry, Inc. Ergonomic fingerprint reader apparatus
US5825474A (en) * 1995-10-27 1998-10-20 Identix Corporation Heated optical platen cover for a fingerprint imaging system
US5953115A (en) * 1997-10-28 1999-09-14 International Business Machines Corporation Method and apparatus for imaging surface topography of a wafer
US6178255B1 (en) * 1998-04-28 2001-01-23 Cross Match Technologies, Inc. Individualized fingerprint scanner
US8882666B1 (en) 1998-05-08 2014-11-11 Ideal Life Inc. Personal health monitoring and/or communication system
US6870946B1 (en) 1998-08-06 2005-03-22 Secugen Corporation Compact optical fingerprint capturing and recognition system
US6381347B1 (en) * 1998-11-12 2002-04-30 Secugen High contrast, low distortion optical acquistion system for image capturing
US6028950A (en) * 1999-02-10 2000-02-22 The National Registry, Inc. Fingerprint controlled set-top box
US6373969B1 (en) * 1999-03-15 2002-04-16 Activcard Ireland, Limited Corrective optical component
US6658164B1 (en) 1999-08-09 2003-12-02 Cross Match Technologies, Inc. Calibration and correction in a fingerprint scanner
US6912300B1 (en) 1999-08-20 2005-06-28 Mitsubishi Denki Kabushiki Kaisha Irregular pattern reader
WO2001031564A1 (en) * 1999-10-22 2001-05-03 Cross Match Technologies, Inc. Adjustable, rotatable finger guide in a tenprint scanner with movable prism platen
WO2002017221A1 (en) * 2000-08-18 2002-02-28 Cross Match Technologies, Inc. Fingerprint scanner auto-capture system and method
US6928195B2 (en) * 2000-12-18 2005-08-09 Cross Match Technologies, Inc. Palm scanner using a programmable nutating mirror for increased resolution
EP1390196A4 (de) * 2001-04-26 2005-12-28 Cross Match Technologies Inc Silicongummioberflächen für biometrische druck-tir-prismen
KR20020028754A (ko) * 2001-05-04 2002-04-17 안준영 액정표시겸 지문입력 패널
CN1509895A (zh) * 2001-06-22 2004-07-07 ��Τ����˹ 彩色复制方法
KR100432490B1 (ko) * 2001-09-17 2004-05-22 (주)니트 젠 광학식 지문취득 장치
US20030149343A1 (en) * 2001-09-26 2003-08-07 Cross Match Technologies, Inc. Biometric based facility security
US6840904B2 (en) * 2001-10-11 2005-01-11 Jason Goldberg Medical monitoring device and system
WO2003063054A2 (en) * 2002-01-17 2003-07-31 Cross Match Technologies, Inc. Fingerprint workstation and methods
US6867850B2 (en) * 2002-01-17 2005-03-15 Cross Match Technologies, Inc. Light wedge for illuminating a platen in a print scanner
US6954260B2 (en) * 2002-01-17 2005-10-11 Cross Match Technologies, Inc. Systems and methods for illuminating a platen in a print scanner
US7418255B2 (en) * 2002-02-21 2008-08-26 Bloomberg Finance L.P. Computer terminals biometrically enabled for network functions and voice communication
US6944768B2 (en) * 2002-04-19 2005-09-13 Cross Match Technologies, Inc. System and methods for access control utilizing two factors to control access
US7073711B2 (en) * 2002-04-19 2006-07-11 Cross Match Technologies, Inc. Mobile handheld code reader and print scanner system and method
US7079007B2 (en) * 2002-04-19 2006-07-18 Cross Match Technologies, Inc. Systems and methods utilizing biometric data
AU2003254280A1 (en) * 2002-08-02 2004-02-23 Cross Match Technologies, Inc. System and method for counting ridges in a captured print image
US20050157914A1 (en) * 2002-08-21 2005-07-21 Jee-Hoon Kim TFT sensor having improved imaging surface
US20040101171A1 (en) * 2002-11-26 2004-05-27 Stmicroelectronics, Inc. Imaging system with guide for accurate fingerprint recognition
US7164440B2 (en) * 2003-02-28 2007-01-16 Cross Match Technologies, Inc. Dynamic image adaptation method for adjusting the quality of digital prints
US7146029B2 (en) * 2003-02-28 2006-12-05 Fujitsu Limited Chip carrier for fingerprint sensor
US8034294B1 (en) 2003-07-15 2011-10-11 Ideal Life, Inc. Medical monitoring/consumables tracking device
US7277562B2 (en) 2003-08-01 2007-10-02 Cross Match Technologies, Inc. Biometric imaging capture system and method
US8571880B2 (en) * 2003-08-07 2013-10-29 Ideal Life, Inc. Personal health management device, method and system
US20050047631A1 (en) * 2003-08-26 2005-03-03 Cross Match Technologies, Inc. Method and apparatus for rolled fingerprint image capture with variable blending
CN105982654B (zh) * 2015-03-03 2019-05-03 东莞市美光达光学科技有限公司 一种用于心率及血压监测仪的光学传感装置

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FR1279317A (fr) * 1960-11-03 1961-12-22 Chance Vought Aircraft Procédé et dispositif pour la production et la comparaison d'images optiques, et leurs applications
US3292149A (en) * 1964-06-18 1966-12-13 Ibm Identification and comparison apparatus for contour patterns such as fingerprints
US3975711A (en) * 1974-08-30 1976-08-17 Sperry Rand Corporation Real time fingerprint recording terminal
GB2089545A (en) * 1980-12-11 1982-06-23 Watson Graham Michael Optical Image Formation

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US3677623A (en) * 1970-11-02 1972-07-18 Kms Ind Inc Clean window assembly for real time fingerprint input to fingerprintidentification system
US3716301A (en) * 1971-03-17 1973-02-13 Sperry Rand Corp Fingerprint identification apparatus
US3947128A (en) * 1974-04-19 1976-03-30 Zvi Weinberger Pattern comparison
US4120585A (en) * 1976-11-19 1978-10-17 Calspan Corporation Fingerprint identification system using a pliable optical prism
US4455083A (en) * 1981-08-24 1984-06-19 Elmes Paul B Method and apparatus for fingerprint verification of identity

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1279317A (fr) * 1960-11-03 1961-12-22 Chance Vought Aircraft Procédé et dispositif pour la production et la comparaison d'images optiques, et leurs applications
US3292149A (en) * 1964-06-18 1966-12-13 Ibm Identification and comparison apparatus for contour patterns such as fingerprints
US3975711A (en) * 1974-08-30 1976-08-17 Sperry Rand Corporation Real time fingerprint recording terminal
GB2089545A (en) * 1980-12-11 1982-06-23 Watson Graham Michael Optical Image Formation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472769A1 (de) * 1990-08-30 1992-03-04 Maurer Identifikationssysteme Gmbh Identifikationseinrichtung für Daumen- oder Fingerabdrücke
WO2011063783A1 (de) * 2009-11-25 2011-06-03 Friedrich-Schiller-Universität Jena Optische vorrichtung zur erzeugung einer störfähigen internen totalreflexion und deren verwendung
CN107454938A (zh) * 2017-06-05 2017-12-08 深圳市汇顶科技股份有限公司 芯片测试头、芯片测试装置及测试方法

Also Published As

Publication number Publication date
US4905293A (en) 1990-02-27
DE3577243D1 (de) 1990-05-23
EP0171939B1 (de) 1990-04-18
EP0171939A3 (en) 1986-08-20

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